Relentless improvement is the fourth pillar of the SAFe House of Lean, which represents the foundational beliefs that are key to SAFe’s effectiveness1. Relentless improvement encourages learning and growth through continuous reflection and process enhancements2. It uses informed decision-making through fast feedback, which means that teams and individuals use empirical data and validated learning to evaluate their assumptions and outcomes, and adjust their actions accordingly3. This enables them to deliver value faster, with higher quality and lower risk, and to foster a culture of innovation and experimentation4. References: Core Values - Scaled Agile Framework, Relentless Improvement - Scaled Agile Framework, Principle #4 - Build incrementally with fast, integrated learning cycles - Scaled Agile Framework, How does relentless improvement support value in the SAFe house of lean …